The C Programming Language 第二版 练习1-16 修改main实现

#include <stdio.h>

#define MAXLINE 10
#define MORE    1
#define NOMORE  0

int mygetline(char line[], int maxline);

int main(void) {
    int     tmplen, len, max;
    int     state;
    char    line[MAXLINE];

    tmplen = len = max = 0;
    /* init state is NOMORE */
    state = NOMORE;

    while ((tmplen = mygetline(line, MAXLINE)) > 0) {
        /* MORE line */
        if (tmplen == MAXLINE - 1 && line[MAXLINE - 2] != '\n') {
            len += tmplen;
            state = MORE;
            printf("%s", line);
        } else {    /* NOMORE line */
            if (state == MORE)
                len += tmplen;
            else
                len = tmplen;
            line[tmplen - 1] = '\0';
            printf("%s [%d]\n", line, len);
            if (len > max)
                max = len;
            len = 0;
            state = NOMORE;
        }
    }
    if (max > 0)
        printf("max:%d\n", max);

    return 0;
}

int mygetline(char line[], int lim) {
    int     c, i;

    for (i = 0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; i++)
        line[i] = c;
    if (c == '\n')
        line[i++] = c;
    line[i] = '\0';
    return i;
}